Nannotax3 - ntax_cenozoic - Reticulofenestra haqii

Reticulofenestra haqii

Classification: ntax_cenozoic -> Isochrysidales -> Noelaerhabdaceae -> Reticulofenestra -> R. pseudoumbilicus group -> Reticulofenestra haqii
Sister taxa: R. calicis, R. pseudoumbilicus, R. haqii, R. minuta, R. minutula, R. asanoi ⟩⟨ R. kahniae, R. rotaria, R. pospichalii

JRYSEM_201 (471-0) 30c.jpg
JRYSEM_265-18.jpg
Young1998_pl03_fig19.JPG
Young1998_pl03_fig24.JPG
deKaenelVilla96pl07 f17.JPG
deKaenelVilla96pl07 f32.JPG

Taxonomy:

Citation: Reticulofenestra haqii Backman, 1978

Rank: Species

Variants:

Reticulofenestra lingfengensis Wang & Huang 1989 - sub-circular [my interpretation JRY 2016]

Distinguishing features: Coccoliths small (3-5µm), intergrades with R. pseudoumbilicus.

Farinacci & Howe catalog pages: R. haqii * , R. lingfengensis *

Search data:

Tags	LITHS: placolith, elliptical, CA: ca_conjunct, grill, vacant, CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent,
Metrics	Lith size: 3->5µm;

The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NN15 zone (3.70-3.92Ma, top in Zanclean stage). Data source: Young 1998
First occurrence (base): within NN2 zone (19.00-22.82Ma, base in Aquitanian stage). Data source: Young 1998

Plot of occurrence data:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
Taxon plotted: Reticulofenestra haqii, synonyms included - Dictyococcites haqii; Reticulofenestra haqii; Reticulofenestra pseudoumbilicus var. haqii;
See also space-time plot :: Samples map :: Parent: R. pseudoumbilicus group

References:

Backman, J. (1978). Late Miocene - Early Pliocene nannofossil biochronology and biogeography in the Vera Basin, SE Spain. Stockholm Contributions in Geology. 32: 93-114. gs

de Kaenel, E. & Villa, G. (1996). Oligocene-Miocene calcareous nannofossil biostratigraphy and paleoeecology from the Iberian Abyssal Plain. Proceedings of the Ocean Drilling Program, Scientific Results. 149: 79-145. gs V O

Wang, C. & Huang, W. (1989). Calcareous nannofossils. Geol. Pub. House, Beijing. 202-252. gs

Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 225-265. gs V O

Reticulofenestra haqii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-1-2021

Taxon Search:

Advanced Search

Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1164 Go to Archive.is to create a permanent copy of this page - citation notes

Comments (1)

Sort By

Page 1 of 1

Ines Galovic (CGS, Croatia)

It is clear on the holotype figures of both R. haqii and R minutula species (dimension around 4 µm and almoust the same number of elements) that R. haqii has smaller opening (around 1 µm) than minutula (around 2 µm) . Your figures of birefringence and last SEM here mostly are not presented by typical figures of haqii origin. Could you please give us (Paratethian workers who are not dealing with younger sediments) more information why you put this species in hagii?

10th April 2014 2:07pm

Jeremy Young (UCL, UK)

Reticulofenestra taxonomy is, of course, problematic and difficult to standardise. My approach in the Neogene is to use coccolith size and shape but not central area opening size. Hence for me all the illustrated forms fall in R. haqii.

13th April 2014 6:46pm

Notify Me

Page 1 of 1

Share a link to this comment

Add Comment

* Required information

1000

Notify me of new comments via email.

Remember my form inputs on this computer.